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        <meta charset="utf-8">
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        <title>20181229</title>
        <meta name="description" content="">
        <meta name="viewport" content="width=device-width, initial-scale=1">
        <link rel="stylesheet" href="">
    </head>
    <body>
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        <script>
            var num = 10;
            var obj = {
                num : 0,
                inner : {
                    num: 6,
                    print:function(a){
                        console.log(this.num + '====' + a);
                    }
                }
            };


            var inner = {
                print:function(){
                    console.log("++++++++++++++++++");
                }
            };

            (function (){
                a = 10;
                console.log(a);
            })();

            console.log(a);
            
            console.log("=================================");

            num = 88;
            obj.inner.print(1);//6
            var fn = obj.inner.print;
            fn(2);//88

            (obj.inner).print(3);//6

            (obj.e = obj.inner.print)(4);//88
        </script>
    </body>
</html>